ludic.ui, compiler: a component's model is filled in place into an object its instance keeps (value_set_*); colours, border-images and a class screen's stub made once; object-fit into a kept list - benchmark 20 -> 10 KB a frame

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ludic.ui/memo_join.ludic

@@ -31,6 +31,8 @@ function mm_join(ui_st: mut UiState, a: string, sep: string, b: string) -> strin
   push(m.texts, null)
   push(m.vals, null)
   push(m.vtpls, null)
+  push(m.n1, 0.0)
+  push(m.n2, 0.0)
   m.slots[at] = len(m.keys)
   return k
 }